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How to use the movable compensating drill device

A compensation type, drill bit technology, applied in drill bits, earth-moving drilling, drilling equipment, etc., can solve the problems of reducing the time for tripping the pipe string, taking a lot of time, wasting manpower, material resources and financial resources, etc., to reduce drilling costs, reduce Operating costs and the effect of improving economic efficiency

Active Publication Date: 2020-12-08
灵璧县浩翔信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in actual production, oil wells are generally hundreds of meters to several thousand meters deep, or even tens of thousands of meters deep. In this process, although the PDC drill bit is wear-resistant and durable, there is still a problem of repeated tripping and unloading of the drill pipe due to the wear of the drill bit. The problem is that at a depth of thousands of meters or even tens of thousands of meters, it takes a lot of time to trip the drill pipe back and forth to replace the drill bit, which reduces the effective drilling time. Most of the time is spent on tripping the drill pipe string, and running it down Drill pipe string, in fact, the time to replace the drill bit is very short, which will waste a lot of manpower, material resources and financial resources
[0003] At present, most of the innovations are used in the improvement of the drill bit, which increases the service life of the drill bit, but no one thinks about how to reduce the time of tripping the pipe string, so as to greatly shorten the time for replacing the drill bit

Method used

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  • How to use the movable compensating drill device
  • How to use the movable compensating drill device
  • How to use the movable compensating drill device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1, with reference to attached Figure 1-7 , a kind of movable compensating drill bit device mentioned in the present invention, taking as an example a group of main drill bit devices and a group of spare drill bit devices, its technical solution is: including drill rod advancing body 1, drilling tool carrier 2, center Consumable body 3, main drilling and milling bit 4, spare bit expansion mechanism 6, spare bit rotating shaft 7, spare bit support rod 8, force transmission torque bar 9, circulating fluid channel 10, spare drilling and milling bit 11, drill bit anti-twist sipe 12. Spare drill bit deployment groove 14, the first drill bit deployment groove 15, the first drill bit deployment shaft 16, the first support rod 17, the first drill bit deployment spring 18, the first drill bit rotating shaft 19, in the drill pipe advancing body 1 The rear end is provided with an external thread 13 for connecting the drill pipe, the drill pipe advancing body 1 is provid...

Embodiment 2

[0041] Embodiment 2, the difference between the present invention and embodiment 1 is:

[0042] The standby drill device is provided with two groups, which are assembled on the center consumption body 3 successively. In this way, after the main drill device and the first standby drill device have been scrapped due to drilling and milling failure, the second standby drill device can be used again. The structure is the same as that of the first spare drill device. The drill bit device is the same, only the length of the central consumption body 3 needs to be lengthened.

[0043] Compared with Embodiment 1, its advantage is that it reduces the time for lifting the drill pipe and lowering the drill pipe once more. If it is in a deep well above 5000 meters, it can save a week or even two weeks, which is necessary for deep well drilling. In other words, it greatly saves drilling time and improves drilling efficiency.

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Abstract

The invention relates to a use method of a movable compensating type drill bit device. The technical scheme of the use method of the movable compensating type drill bit device is that a drilling toolcarrier is arranged in a central hole of a drill pipe driving body; a circulating liquid passage is formed between the drilling tool carrier and the drill pipe driving body; a central consuming body is arranged in a central bearing hole of the drilling tool carrier; a main drill bit device and a spare drill bit device are arranged on the central consuming body; and the internal surface of a main drilling and milling drill bit is clamped in a drill anti-torsion knife accommodating groove formed in the tail end of the drill pipe driving body. The use method of the movable compensating type drillbit device has the beneficial effects that multiple spare drill bit devices are designed to be mounted under a drill pipe at one time together with the main drill bit device to perform well drillingoperation underground; when the main drill bit device fails to work, the spare drill bit device is moved out to form a new drilling and milling drill bit to avoid one or more operations of lifting thedrill pipe upwards to change the drill bit; and therefore, the operation time is greatly shortened, and the effective well drilling efficiency is enhanced; and meanwhile, the operation cost is also reduced, the well drilling economic benefit is increased, and the well drilling cost is reduced.

Description

technical field [0001] The invention relates to a compensable drilling bit device and method, in particular to a method for using a movable compensating drill bit device. Background technique [0002] The drill bit is the main tool for breaking rock during the drilling process, and the wellbore is formed by breaking the rock with the drill bit. Whether a wellbore is formed well or not, the length of time it takes is not only related to the characteristics of the drilled formation rock and the performance of the drill bit itself, but also to the degree of matching between the drill bit and the formation. The reasonable selection of the drill bit plays an important role in increasing the drilling speed and reducing the overall cost of drilling. PDC bit is a rock-breaking tool widely used in the oil and gas exploration and development industry today, which effectively improves mechanical drilling tools and shortens the drilling cycle. However, in actual production, oil wells ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B10/62E21B10/54E21B10/43E21B10/60
CPCE21B10/43E21B10/54E21B10/602E21B10/62
Inventor 于燕张润泽
Owner 灵璧县浩翔信息科技有限公司